[NETFILTER]: ip_nat_tftp: Fix expectation NAT
When a TFTP client is SNATed so that the port is also changed, the port is never changed back for the expected connection. Signed-off-by: Marcus Sundberg <marcus@ingate.com> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -42,7 +42,10 @@ static unsigned int help(struct sk_buff **pskb,
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enum ip_conntrack_info ctinfo,
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struct ip_conntrack_expect *exp)
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{
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exp->saved_proto.udp.port = exp->tuple.dst.u.tcp.port;
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struct ip_conntrack *ct = exp->master;
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exp->saved_proto.udp.port
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= ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u.udp.port;
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exp->dir = IP_CT_DIR_REPLY;
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exp->expectfn = ip_nat_follow_master;
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if (ip_conntrack_expect_related(exp) != 0)
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